نتایج جستجو برای: liquids

تعداد نتایج: 21511  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Matthew A Gebbie Howard A Dobbs Markus Valtiner Jacob N Israelachvili

Electrolyte solutions with high concentrations of ions are prevalent in biological systems and energy storage technologies. Nevertheless, the high interaction free energy and long-range nature of electrostatic interactions makes the development of a general conceptual picture of concentrated electrolytes a significant challenge. In this work, we study ionic liquids, single-component liquids com...

Journal: :Molecules 2009
Subbiah Sowmiah Venkatesan Srinivasadesikan Ming-Chung Tseng Yen-Ho Chu

Ionic liquids are novel solvents of interest as greener alternatives to conventional organic solvents aimed at facilitating sustainable chemistry. As a consequence of their unusual physical properties, reusability, and eco-friendly nature, ionic liquids have attracted the attention of organic chemists. Numerous reports have revealed that many catalysts and reagents were supported in the ionic l...

2015
Christopher Bates Peter W. Battaglia Ilker Yildirim Joshua B. Tenenbaum

Liquids can splash, squirt, gush, slosh, soak, drip, drain, trickle, pool, and be poured–complex behaviors that we can easily distinguish, imagine, describe, and, crucially, predict, despite tremendous diversity among different liquids’ material and dynamical characteristics. This proficiency suggests the brain has a sophisticated cognitive mechanism for reasoning about liquids, yet to date the...

2013
Sauro Pierucci Jiří J. Klemeš Girma Gonfa M. Azmi Bustam Thanabalan Murugesan Zakaria Man M. I. Abdul Mutalib

Separation of benzene and cyclohexane is one of the most important processes in the petrochemical industry. However, due to their close boiling points and azeotrope formation, it is difficult to separate cyclohexane and benzene by conventional distillation processes. In this work, five thiocynate-based ionic liquids were investigated as solvent for separation of benzene and cyclohexane using ex...

2013
Z. Conrad Zhang

Ionic liquids with anions of strong hydrogen-bond basicity have been broadly reported in the literature as effective solvents for the dissolution of the components of lignocellulosic biomass. The key attributes of various ionic liquids are reviewed with a focus on their structural and functional properties related to biomass dissolution capacity. A number of the most studied ionic liquids with ...

Journal: :CoRR 2017
Connor Schenck Dieter Fox

Liquids are an important part of many common manipulation tasks in human environments. If we wish to have robots that can accomplish these types of tasks, they must be able to interact with liquids in an intelligent manner. In this paper, we investigate ways for robots to perceive and reason about liquids. That is, the robots ask the questions What in my sensory data stream is liquid? and How c...

2017
Robert Mozes Peter K. Cooper Rob Atkin Hua Li

The rheological characteristics of one mineral oil and two ionic liquid (IL) based lubricating greases were explored as a function of thickener concentration. The ILs used are 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIM][TFSI]) and trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl)imide ([P6,6,6,14][TFSI]), with polytetrafluoroethylene (PTFE) particles used as t...

Journal: :Chemistry 2006
Stefano Brenna Tobias Posset Julien Furrer Janet Blümel

A variety of popular ionic liquids have been synthesized and characterized, including by optimized (14)N NMR spectroscopy of the neat and dissolved ionic liquids. Ionic liquids incorporating Si(OEt)(3) groups have been immobilized on silica in a well-defined manner with the imidazolium moiety remaining intact. This has been proved by optimized one- and two-dimensional (1)H and (13)C HRMAS NMR s...

2015
Maria Vasiloiu Peter Gaertner Ronald Zirbs Katharina Bica

Hydrophilic coordinating chiral ionic liquids with an amino alcohol substructure were developed and efficiently applied to the asymmetric reduction of ketones. Their careful design and adaptability to the desired reaction conditions allow for these chiral ionic liquids to be used as the sole source of chirality in a ruthenium-catalyzed transfer hydrogenation reaction of aromatic ketones. When u...

2008
Geetanjali Singh Anil Kumar

A new class of compounds, called as ionic liquids, has recently emerged as potential substitute for volatile organic solvents. Ionic liquids possess certain special physico-chemical characteristics that render them very useful in different areas of research and development. In this review, the physico-chemical properties and the applications of ionic liquids in chemical processes are critically...

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